The front brake discs consist of an inner carrier, which is mounted to the wheel, and an outer rotor. Both parts must be changed together as a pair.
Remove the front wheel (sect. 7 - 1, Removal of the front wheel).
Undo the retaining screws (5) of the disc to the wheel, remove the disc (7) and, on its left side, slide out the phonic wheel (6).

Removal of the front brake system
Overhauling the front brake componentsGround connection locations
The negative cable, which is normally connected to the negative pole of the
battery, is fastened to the crankcase. From here, the cable
branches off and splits up within the electrical system to carry the ground
connection to the different elements in the system.
The image shows the ground ...
First warning - oil service 1000 km
The first warning is activated at 1000 km (600 miles) of odometer reading.
The (red) warning is activated as a large icon for 10 seconds upon every key-on
(1) then as a small warning that
remains displayed (2) until it is reset.
...
Refitting the crankshaft/connecting rod assembly
Install the connecting rod assembly (6) and (2) in the crankcase, carry out
the shimming and crankcase half reassembly
procedure as described in sect. 9 - 9.2, Reassembly of the crankcase halves.
Important
Make sure that the connecting rods (2) are correctly positioned in the
cylinders. Incor ...